Electrical control system for the operation of braking means of warping or beaming plants



F. LAMBACH April 25, 1944.

I ELECTRICAL CONTROL SYSTEM FOR THE OPERATION OF BRAKING MEANS OFWARPING 0R BEAMING PLANTS Original Filed Nov. 21, 1941 v4 Sheets-Sheet lINVENTOR & fZ /TZ mme/ra 1% Z k m ATTORNEY Apnl 25, 1944. F. LAMBACH2,347,198

ELECTRICAL CONTROL SYSTEM'FOR THE OPERATION OF BRAKING MEANS OF WARPINGOR BEAMING PLANTS Original Filed Nov. 21, 1941 4 Sheets-Shea}. 2

Z A ATTORNEY INVENTOR I 7'2 1/7/7646 NMV mwiv trick :56

F. LAMBACH April 25, 1944.

ELECTRICAL CONTROL SYSTEM FOR THE OPERATION OF BRAKING MEANS OF WARPINGOR BEAMING PLANTS Original Filed Nov. 21, 1941 4 Sheets-Shae? 3 April25,- 1944.

F. LAMBACH 2,347,198

N OF BRAKING ELECTRICAL CONTROL SYSTEM FOR THE OPERA? 9 .MEANS OFWARPING 0R BEAMING'NAWTS Original Filed Nov. 21, 1941 4 Sheets-Sheet 4Patented Apr. 25, 1944 UNITED STATES PATENT OFFICECA ELECTRICAL CONTROLSYSTEM FOR THE OPERATION OF BRAKING MEANS OF WARPING OR BEAMING PLANTSOriginal application November 21, 1941, Serial No.

419,832. Divided and this application Novemher 2, 1942, Serial No.464,228

36 Claims. (Cl. 28-551) This application is a divisional applicationdivided out of my copending patent application Serial #419,832, filed onNovember 21, 1941, for an Electrical control system for a warping orbeaming plant.

My invention relates to an electrical control system for textilemachines, and more particularly to an electrical control system for awarping or beaming plant.

One object of my invention is to improve upon the electrical control ofwarping or beaming plants as now ordinarily made.

My invention consists in certain novel features of an electrical controlsystem as will be fully described hereinafter.

Further objects and advantages of the invention will be apparent fromthe following disc1osure of several embodiments thereof.

In the accompanying drawings is:

Fig. 1 an elevational view of a warping plant including a creel, astorage device, a sectional warper and an A. C. to D. C. motor generatorset, only the end portion of the creel being shown in the drawings,

Fig. 2 a circuit diagram of an electrical control system for theelectrical equipment of the warping plant shown in Fig. 1, wherein theswitches are shown in their normal position when the re lays aredeenergized,

Fig. 3 an elevational view, partly in section, of

a different embodiment of a beaming plant including a creel and a beamercomprising an A. C. to D. C. motor generator set, only the end portionof the creel being shown in the drawing, and

'Fig. 4 a different embodiment of a circuit diagram of an electricalcontrol system for the electrical equipment of the beaming plant shownin Fig. 3, wherein the switches are shown in their age device. The A. C.to D. C. motor generator set 26 is supplied with alternating currentfrom an electrical source (not shown) through the line 30 and deliversdirect current to the various electrical equipments of the warping plantthrough a multiple conductor cable 32.

During the normal operation of the warping plant, the warp yarns 34travel from the bobbins 36 mounted in the creel through-the space be--'tween a stationary gripping means, 38 and a movable gripping means 40 ofthe storage device 22 and thence through a'reed 42 to a beam 44 insertedinto the warper-2ll and driven by a D. C. electromotor 46 mounted on theframe of the warper.

The storage device 22 may be used for a'temporary unwinding of a portionof the warp 34- from the beam 44 in case of breakage of yarnat a pointbetween the creel and the beam. For this purpose, the movable grippingmeans 4'0; may be displaced by a reversible A. C. motor 480 mountedthereon and controlled by a reversing: switch 49$ from its inactiveposition shown in-full lines into its active position 40' shown in dashanddot lines.- After the broken ends ofthe yarn or yarns have been tied,the movable gripping means may be returned into its normal inactiveposition by means of the reversible motor 480. For a full description ofthe construction and operation of the storage device 22 and the warper20 reference is had to my Patent 2,302,700 relating to a Storage devicefor a temporary unwinding of a portion of the warp from the beam on awarping or beaming machine, issued on Novemas other electrical means ofthe warping plant shown in Fig. 1 are arranged in an electricalcontrolsystem forming the subject matter of my invention; According .tothe circuit diagram of the electrical controlsystem shown in Fig.2,

theA. C. motor 352: oi the A. C..to D. C. motor generator set 26 issupplied with alternatingcurrent from an electrical source (not shown)through the lines 30 upon a closing of thehand switch 354 j Thegenerator 356 of the A. C. to.

DlfC. motor generator set 26 produces the direct current;

The generator 356 is arranged in the follow the line 362 includingthe'electromagnet 364 of a motor field'vibrating relay 365. The terminal3630f the 'generator356 is connected with the".

terminalfll! of the electromotor 46 through the line 312 including thepole M1 of the triple-pole main switch M controlled by the trip coilmagnet: '314, the solenoid" 316 of an overload circuit r he eries field330 cf the electro motor 4'6.

As will be apparent from the foregoing, the electromotor 46 of thewarper may be started by closing the pole M1 of the main switch M. Thispole M1 may be closed by an energization of the trip coil magnet 314,which is arranged in the following motor start circuit: A line 384 leadsfrom the right hand terminal of the start push button switch 382 (seeright hand portion of Fig. 2) to the left hand terminal of the overloadPatent ii -2,324,612, on July 20, 1943. The coil 882 of the automaticmotor field rheostat 258 is connected with one end of the shunt field394 of the electromotor 48 through a line 396. The other end of thefield 394 is connected with the left hand terminal of the start pushbutton switch 382 through a line 398. The start push button 382, which"is arranged in the Stop-start-station" 688'mounted on the frame'of thewarper 28, is normally held inits open position by the action of aspring: (not shown). Current is supplied to above described motor startcircuit from the exciter 456 of the A. C. to D. C. motor generator set26 bymeans'of'a line 452 connecting the terminal 454 with a junctionpoint 448 in the line 388 and by means of lines 462'and 418connectingthe terminal 458 with a junction point 416 in the line 398. Assoon as the above described motor start circuit is closed by pushingdown the start push button 382, the trip coil magnet 314 will be excitedfor closing the main switch M with its pole M1, which in turn closes theabove described main motor circuit for starting the electromotor 46.

When the trip coil magnet 314 is excited by closing above describedmotor start circuit by means of the spring loaded start push button 382,

the .pole M2 of the main switch M is also closed, whereby a, motor startholding circuit including the trip coil magnet of the main switch isclosed as will be described hereinafter, so that the main switch remainsin closed position upon a subsequent release of the spring loaded startpush button. Said motor start holding circuit may be traced as followsstarting from the left hand terminal of the start push button switch382: The line 398, the shunt field 394, the line 396, the automaticrheostat 258, the line 388, the trip coil magnet 314 of the main switchM, the line 386, the bridge of the overload circuit breaker 318, and theline 488 connecting the left hand terminal of the circuit breaker 318with the left hand terminal of the start push button switch 382, saidline 488 including the pole M2 of the main switch M, the switch 482 of acounter stop relay 484, the switch 486 of awarp brake relay 488, theelectromagnet 4|8 of a time relay 4! 2, and a stop push button switch 4arranged in the "Stop-start-station 688 and normally held in closedposition by a spring (not shown).

The main switch M is opened and the supply of direct current to theelectromotor 46 is interrupted at the pole M1, as soon as the abovedescribed motor start hold ng circuit including the.

trip coil magnet 314 is interrupted either at the stop push buttonswitch 4 l4 or at thecircuit opening switch 486 of the warp brake relay488 or at the circuit opening switch 482 of the counter stop relay 484.The opening of the spring loaded stop push button switch 4I4 takes placewhen the warper is arrested by hand for any reason whatsoever. Theopening of the switch 488 takes place when one or more control needlesM6 in the creel drop and close a needle controlcircuit to be describedhereinafter owing to a breakage of yarn, and the opening of the switch482 takes place when the normally closed switch 4! of a shut off counter98 arranged on the warper 28 is opened after the performance of apredetermined number of revolutions of the beam as will be describedhereinafter.

Any of above mentioned interruptions of the motor start holding circuitcauses an energization of a brake solenoid 3|8 acting on the beam brake294, 296 and the pressure roll brake 322, 326 coupled with each other bya Bowden wire 344 as more fully described in my patent 412,324,612relating to a Warping or beaming machine, issued on July 20, 1943. Anenergization of the brake solenoid 318 causes an immediate applicationof the brakes of the warper simultaneously with the above describedinter ruption of the supply of direct current to the electromotor 46 bythe opening of the main switch M. The brake solenoid 318 is arranged inthe following brake circuit: A line 428 branched oil at the point 422from a first line of the A. C. supply line leads to a time delay switch424 of the time relay 4! 2 and thence to one end of the brake solenoid3l8. The other end of the brake solenoid 3l8 is connected with thejunction point 426 in a, second line of the A. C. supply line through aline 428 including the brake control switch 438 of a brake control relayor solenoid brake relay 432. An adjustable choke coil 433 is arranged inparallel to the time delay switch 424 of the time relay-M2 by means of aline 42! branching off from the line 428. The electromagnet 434controlling the brake control switch 438 of the brake control relay 432is arranged in the following brake control circuit: A line 436 leadingfrom the electromagnet 434 to the junction point 438, the portion of theline 388 from said juncportion of the line 388 leading from the tripcoil magnet 314 to the junction point 448, and the line 442 connectingsaid junction point 448 with the electromagnet 434. Thus, as soon as themotor start holding circuit including the trip coil magnet 314 isinterrupted at the stop push button switch M4 or the switch 486 or theswitch 482, the described brake control circuit including theelectromagnet 434 of the brake control relay 432 is also interrupted, sothat the electromagnet 434 is deenergized and the brake control switch438 is closed. At the same time the electromagnet 4 I801 the time relay4l2, which is arranged in themotor start holding circuit including thetrip coil magnet 314 is also deenergized. Owing to the delaying actionof the time relay 4 l2, however, the time delay switch 424 remains for ashort period, for example 2 sec., in the closed position 424 shown indash lines, so that the brake circuit including the brake solenoid 318will be closed and the latter will cause a strong application of thebrakes 294, 296 and 322, 326 of the warper 28, as soon as theelectromagnet 434 of the solenoid brake relay 432 is dc energized andthe brake control switch 430 there.- of is closed. After said shortperiod of 2 sec., for example, however, the switch 424 of thedeenergized time relay 4l2 comes into the open position shown in fulllines, so that now the adjustable choke coil 433 is included in thebrake circuit including the brake solenoid 3l8, whereby the energizationof the brake solenoid 3 I 8 is automatically reduced to a predetermineddegree for causing only a slight application of the brakes of thewarper. Thus, after a short period of a strong application of the brakesfor causing an immediate stoppage of the beam, a slight application ofthe brakes .prevails as long as the supply of direct current to theelectromotor 46 is interrupted and the latter is arrested. As soon asthe electromotor 46 is restarted in a manner to be describedhereinafter, the electromagnet 434 arranged in parallel to the trip coilmagnet 314 is excited, so that the brake control switch 433 is openedand the brake solenoid 318 is deenergized for an immediate release'ofthe brakes of the wanper. Incidentally, it may be mentioned that therestarting of the electromotor 46 causes an energization of theelectromagnet 410 of the time relay M2, which is arranged in the motorstart holding circuit, so that the time delay switch 424 is again closedso as to render the brake circuit ready for the next braking operationin the manner described above. The above described slight application ofthe 'brakes of the warper during the standstill of the motor 46 may beadjusted by the choke coil 433 to such a degree that it permits anunwinding of a portion of the winding on the beam by the storage device22 but prevents an undesired continuationof the rotation of the beam assoon as the storage device has been stopped for the termination of theunwinding operation.

If desired, however, the line 42! and the adjustable choke coil 433 maybe omitted. Under these circumstances the brake solenoid 3E8 would bedeenergized as soon as the time delay switch 424 of the time relay 4| 2comes into the open position, i. e., the brakes of the Warper would bereleased already after a short period of application corresponding tothe delaying action of the time relay.

The automatic electrical controlling means or motor field rheostat 258arranged in the motor start holding circuit and controlled by thepressure roll I32 in dependence on the increase of the diameter of thewinding I34 on the beam 44 serves to cause an automatic reduction of theoperating speed of the electromotor 46 from a predetermined normaldegree to a lower degree, so that a substantially constant travellingspeed of the warp yarns resulting in a substantially constant tension inthe yarns is obtained during the operation of the warper. The normaltravelling speed of the warp yarns is determined by said predeterminednormal operating speed of the electromotor 46 at the start of thewarping operation. Different yarns of different size and/or materialrequire difierent travelling speeds to ob.- tain the proper tension inthe yarns. For this purpose, an additional electrical adjusting means ora hand rheostat 350 is arranged on the'frame of the Winner 26 for theadjustment of said predetermined normal operating speed of theelectromotor 46 driving the beam 44 by hand. This hand rheostat 359 isarranged in the following normal speed control circuit: A line 444 leadsfrom the end 445 of the coil 446 of the generator field hand rheostat350 to the pole M3 of the main switch M, which in turn is connected withthe junction point 448 in the. line 3:88 by a line 450. A line. 452leads from said junction point 448 to the terminal 454 of the exciter456 of the A. C. to D. 0. motor generator set 26. The terminal 458 ofthe exciter 456 is connected with one end of the field 460 of the D. C.generator 356 by a line 462. The other end of the field 460 is connectedwith the movable finger 464 of the hand rheostat 350 through a line 466including the switch 468 of the warp brake relay 408. "The end 441 ofthe coil 448 of the hand rheostat 350 is connected with the junctionpoint 410 in the line 462 through a line 412 leading to the junctionpoint 414, through the portion of the line 393 connecting the junctionpoint 414 with a junction point 416, and through a line 418 connectingthe junction point 416 with the junction point 410. As will be apparentfrom the described connections, the generator field 460 is energized bythe source of direct current or the exciter 456, which generates aconstant potential. This potential is applied to a circuit comprising afirst portion or the left hand portion (as viewed in Fig. 2) of the coil446 of the generator field hand rheostat 356 in parallel with thegenerator field 460 and a second portion or the right hand portion ofthe-coil 446 of the generator field hand rheostat 350 in series withthese. A movement of the finger 464 across the generator field handrheostat 350 will cause a variation of the potential applied to thegenerator field 46B and, consequently, a variation of the currentflowing through this generator field during the normal operation of thewarper. If, for example, the finger 464 is moved to the right, theenergization of the generator field and the current flowing through saidgenerator field are increased. Therefore, the current flowing throughthe generator field is in proportion to the setting of the finger 464 ofthe hand rheostat 350. This current, when high, gives a high voltagegenerated by the generator 356, when low, a low voltage generated, i.e., the potential generated by the generator is variable. The normaloperating speed of the electromotor 46 at the start of the warpingoperation is determined by'the voltage of the direct current supplied tothe electromotor, and, therefore, the normal operating speed of theelectromotor may be easily adjusted by means of the hand rheostat. Ithas been found that a wide speed range of the D C. electromotor 46 maybe obtained by connecting the hand rheostat 359 with an appropriatesource of direct current in such a way, that the rheostat 350 controlsthe voltage of the direct current supplied to the electromotor 46 of thewarper.

As will be apparent from the foregoing, a variation in speed of theelectromotor 46 may be obtained on one hand by a change of the voltageoutput of the generator by means of the generator field hand rheostat350 and on the other hand by a change of the excitation of the motorshunt field 394 by means of the automatic motor field rheostat 258. Inother words. the generator field hand rheostat 350 serves to adjust apredetermined normal operating speed of the electromotor 460i the warperby hand, while the automatic motor field. rheostat 258 controlled by thepres: sure'roll I32 of the warp serves to automatically reduce theoperating speed of the electromotor 46 from said predetermined normalvalue to a lower value. so as to obtain a substantially constanttension. in the yarns and/or constant travelling speed of the yarnsrespectively during the warping operation. For a better explanation ofmy invention, the operation of the electromotor 46 at said normaloperating speed and at saidreduced lower operating speed shall be termedthe normal high speed operation of the electromotor in contrast to avery low speed operation or a -so-called inching speed operation of theelectromotor 46, which is desirable under certain circumstances only, aswill be described hereinafter.

As described above, the switch 402 of the counter stop relay 404 and theswitch 406 of the warp brake relay 408 are engaged in series in themotor start holding circuit. Therefore, these two switches 402 and 406must be in closed position, or, in other words, the electromagnet 602 ofthe counter stop relay 404 and the electromagnet 482 of the warp brakerelay'468 must be deenergized, if a continuous operation of theelectromotor 46 at above mentioned high seped'by an actuation andsubsequent release of the start push button 382 is desired.

At first the circuits controlling the counter stop relay 404 with theswitch 402 will be described hereinafter. The electromagnet 602 of saidcounter stop relay 404 is arranged in the following counter stop relaycontrol circuit: A line 604 connects-the electromagnet 602 with the lefthand terminal'of a switch 580 controlled by an electromagnet 606 of ashut off counter relay 582; a line 608 leads'fromthe right hand terminalof said switch 580 to the junction point 6| in a line 550, a portion ofwhich leads to one end of the secondary winding 546 of a low voltagetransformer 548; a line 544 leads from the other end of said secondarywinding 546 to a junction point 542, which is connected with theelectromagnet 602 by a line BIZ. The primary winding 514 of the lowvoltage transformer 548 is connected with two lines of the A. C. supplyline in the following manner: a portion of the line 428 between thejunction point 426 and a junction point 510, and the line 516 connectingthe junction point 510 withone end of the primary winding 514; theportion of a line l6 between a junction point 5M and'a junction point511, and a line 518 connecting the junctionpoint 5|! with the other endof the primary winding 514, It will be understood that the electromagnet602 of the counter stop relay 404 will be excited and the switch 402will be opened for an interruption of the motor start holding circuit assoon as the electromagnet 606 of the shut off counter relay 582 isdeenergized causing a closing of the switch 580 arranged in the abovedescribed counter stop relay control circuit. Furthermore, it will beunderstood, that the electromagnet 602 of the counter stop relay 404remains in deenergized condition and the switch 402 remains in closedposition for closing the motor start holding circuit for a continuousoperation of the electromotor 46 as long as the electromagnet 606 of theshut off counter relay 502 is excited for holding the switch 580arranged in the above described counter stop relay control circuit inopen position.

The electromagnet 606 of the shut off counter relay 582 is arranged inthe following reset circuit: A line 6! 4 connects the electromagnet 606with the right hand terminal of a reset push button 6H5 arranged in theStop-start-station 600 and normally held in open position by a spring(not shown); a line 6l8 leads from the left hand terminal of the resetpush button switch M6 to a junction point 552, which is connected withone end of the secondary winding 546 of the low Voltage transformer 548by the line 550; a

line 544 leads from the other end of the secondary winding 546 to ajunction point 542 connected with the left hand terminal of the switchMB of the shut ofi counter 68 by a line 540; the right hand terminal ofsaid switch 4| 8 is connected with the electromagnet 606 by a line 620.The shut off counter 98, which may be of any well known type, is drivenby the beam 44 as described in my Patent #2,324,612, issued on July 201934. Prior to the start of a warping operation the shut off counter isset for a predetermined number of revolutions to be performed by thebeam during the warping operation. When the shut ofi counter is set forsaid predetermined number of revolutions, the switch MB of the counteris closed. Now, when the electromagnet 606 is excited by an actuation ofthe spring loaded reset push button 6l6, the switch 580 is opened andthe switch 402 is closed, the latter being controlled by theelectromagnet 602, which is deenergized by the opening of the switch580. Now, the motor start holding circuit is closed at the switch 402for a continuous operation of the electromotor 46.

When the electromagnet 606 of the shut off counter relay 582 is excitedby closing above described reset circuit by means of the spring loadedreset push button switch 6| 6, a switch 58 also controlled by theelectromagnet 606 is closed, whereby a reset holding circuit includingthe electromagnet 606 is closed as will be described hereinafter, sothat the electromagnet 606 remains in excited condition and the switch402 of the motor start holding circuit remains in closed position upon asubsequent release of the spring loaded reset push button switch 6 I 6as long as the switch 418 of the shut off counter 98 remains in closedposition. The reset holding circuit may be traced as follows startingfrom the upper terminal of the electromagnet 606: The line 620, theswitch 4l8 of the shut off counter 98, the line 540 up to the junctionpoint 434, the line 544, the sev ondary winding 546, the line 550 up tothe junction point M0, the line 608 connecting said junction point 6I0with the right hand terminal of the switch 58!, and a line 622connecting the left hand terminal of said switch 58l with theelectromagnet 606.

Owing to the fact that above described reset holding circuit includesthe switch MB of the shut off counter, the electromagnet 606 will bedeenergized and consequently, the switch 580 will be closed and theswitch 402 will be opened for an immediate stoppage of the electromotor46 and application of the brakes 294, 296 and 322, 326 of the warper inthe manner described above, as soon as the switch 4! of the shut offcounter 98 is automatically opened after the beam has performed thepredetermined number of revolutions for which the shut off counter hasbeen previously set.

As will be apparent from the foregoing, after a stoppage of the warperby the shut of! counter 98, a new continuous operation of theelectromotor 46 cannot be obtained by pressing and releasing the startpush button 382 unless the operator has first reset the shut off counterto a predetermined number of revolutions to be performed by the beam andhas also reset the shut off counter relay 582 by an actuation of thereset push button 6 I 6.

In order to indicate the stoppage of the warper by the shut ofl' counter98 at the end of a warping operation, a pilot lamp 624 installed in theStop-start-station 600 is arranged in the following signal circuit: Aline 626 leading from the arranged-on the creel terminal base 532, thecreel left hand terminal of the pilot lamp 624 to a junction point 628in the line 604,'the portion of the line 664 leading from the junctionpoint 628 to the switch 580, the switch 588, the line 688 up to thejunction point 6), the portion of the line 558 leading from the junctionpoint 6l8 to the secondary, winding 546, the line 544 up to, the

junction point 542, the line 540 up to a junction point 538, a line 536connecting said junction point 538 with a junction point 534, a line 532connecting said junction point 534 with a junction point 536, and a line638 connecting said junction point 538 with the right hand terminal ofthe pilot lamp 624. Thus, as soon as the Warper is stopped by the shutofi counter 98, whereby the switch 586 controlled by the electromagnet686 of the shut ofi counter relay 582 and arranged in above describedsignal circuit is closed, the

pilot lamp 624 lights up thus indicating to the operator that thedesired length of yarn has been warped and that the shut off counter 68and its relay 582 have to be reset for a new warping operation. When theshut off counter and its relay are reset by setting the counter andpushing down the spring loaded reset push button 6 l 6, thescribed. Theelectromagnet' 482 of the war brakerelay 468 controlling the switch456is arranged in the following warp brake relay control circuit: A line568 connects the velectromagnet 482 with the left'handterminal of aswitch 566 controlled by an electromagnet 556 of a warp brake sensitiveintermediate relay 558; a line 512 leads from the right hand terminal ofsaid switch 566 to a junction point 516 in the line 550; the portion ofthe line 558that leads from said junction point 518 to one'end of thesecondary Winding 546 of the low voltage transformer 548; the secondarywinding 545; the line 544 leading from the secondary winding 546 tothe-junction 'point 542, and; the portion of the line 540 that leadsfrom said junction point 542- to the electro-. magnet 482. Qbviously,the electromagnet 482 of the warp brake relay 408. will be excited forpening the s i ch soast caus a s o pa e of the electromotor 46 and an-applicationflofxthe brakes of the warper in the. manner describedabove, as socn as the 'electromagnet 5560f the Warp brake sensitiveintermediate relay 558 is ex; cited for closing the switch 566. 1 Theelectromagnet 556 is arranged in the 'fol lowing needle control circuit:A line 630 con: necting the electromagnet 556 with one terminal eracreel e mina a e 3. mounted omthe creel 24; the control needle 4L6; aline 634lead1= ing from the other terminal of the creel terminal bas 2 oh i nc io po nt. 534; t line widen e jun i n point 53 with the lune;-tion point 538; theportion of the line 548 that connects the junctionpoint 538 with the junction point 542; the line 544; the secondarywinding 546 of the low voltage transformer 548; the line 55.0 up to thejunction point 552; and ;a line 554 connecting the junction point 552with the electrpmagneti .556. Although Fig; "2 diagram:

ma ically illustrates only; one control needle 415' carries a pluralityof control needles 4l6, one for each Warp yarn 54 to be drawn from abobbin 35. The several control needles MB of the creel are arr it ed inseveral rows and are electrically connected in parallel to each otherwith the creel terminal. base 552. Tnerei'ore, if one or more controlneedles 4:6 01 the creel drop owing to a breakage of yarn, the abovedescribed needle cnntrol circuit is closed, whereby the electromagnet556 or the warp brake sensitive intermediate relay 558 is excited, sothat the switch 566 is closed which in turn causes an energization oithe electiomagnet 462 oi the warp bralre relay 4 resulting in an openingor the switch 4w causing'a n interruption or the motor start holdingcircuit for a stoppage of the electromotor 46 and an application or webrakes in the manner described above.

Acontrol lamp 556 is arranged in series With each row or control needlesilo, so that upon the dropping or a control needle caused by thebreakage'cf a yarn the control lamp associated With the row or controlneedles containing the control needle closing the needle control circuitlights up; For the sake of simplicity, Fig. 2 snows only one controllamp 636 arranged in the line 638 or the needle control circuit as itshows only one control needle 416.

In the foregoing paragraphs the energization 91 the electromagnet 556 orthe warp brake sensitive intermediaterelay 558 by means oI- a controlneedle 416 has been described. An energization or the .electromagnet 55oresulting in an opening or the switches 485 and 468 both controlled bythe electromagnet 452 or the warp brake relay ie-u may also be obtainedby an inching speed switch 490. As more fully described in my Patent#2,302,700; issued November 24, 1942, the inching speed switch 456 isarranged on the movable carriage 54 carrying the movable gripping means46. As long as the carriage 64 is in its upper inactive pcsition shownin 11,111 lines in Fig. 1, the inching speed switch 495 is open. Theinching speed switch 496 is connected in parallel to the control needles4:5 with the needle control circuit by the following lines: a line 554leading from the right hand term nal 01' the inching speed switch 466 toone end or an adjustable resistor 562, the other end of which isconnected with the electromagnet 556 by a line 56o; a line 528 leadingfrom the left hand terminal-0r the inching speed switch 455 to thejunction point 535 connected with the junction point 554 by the line532. Thus, the electromagnets 556 and 482 may also be excited by closingthe inching speed switch 496 upon the downward n ovementof the carriage64 of the storage device. ltmay be mentioned, that the adjustableresistor 55;! may be adjusted to a resistance substantially equal to theresistance of one control lamp 655 arranged in series with one row ofcontrol needles 4 I 6.

An energization of the electromagnet 482 of the warp brake-relay Fwd bya control needle H6 or y fi ei i hing speed SWlBCil 465 as describedabove causes-a simultaneous opening of the switches-456 and'468.Theswitch 466 is'arranged in the motor start holding circuit, and anopening of the switch 4.66 causes a stoppage or" the wai'perand anapplication of'the brakes, as described above." The speed control switch468 is arrangedin the normal speed control circuit inclndingthe'generator field 46D and the generator field hand 'rheostat 356 asdescribedabove. .'If the speed controlswitch'468 is opened by aneriergization of the electromagnet 482, the generator field handrheostat 350 is dis connected from the generator field 460.--Anadjustable inching resistor 484 is arranged-in serieswith thegenerator'field 490 between the junction generator field, setting up aflux which will-pro duce a low voltage required for the-low inchingspeed and the low torque of the electromotor 46. It may bementioned thatthis flux, and therefore voltage and torque, are independent of thesetting of the generator field hand rheostat 350, as'the latter isdisconnected from the'generator field 460. On the other hand, thegenerator field hand rheostat 350 willbe' reconnectedwith the gen-'erator field 460 and afurther' operation of "the electromotor 46 atinching speed will be rendered impossible as soon as the speed' controlswitch'468 controlled by the electromagnet 482 of the warp brake relay-408 is returned into closing position upon an interruption of the needlecontrol circuit by the'control needle 416 and/or by the inching speedswitch 490;

- As pointed out above, the switches 405 and 468 are simultaneouslyopened or closed by-the electromagnet 482 of the warp brake relay 408;Therefore, if thespeed control switch 458 "is opened for an-operation ofthe electromotor 46 at inching speed by establishing the inching speedcontrol circuit, the switch 406- arranged in'the motorstartholdingcircuit is also opened. There fore, the electromotor 46 can beoperated'at inching speed only for such atime-as the motor start circuitincluding the trip -coil magnet 344 concircuit by means of the followingauxiliary start circuit: a line 590 leads from the junction point 588 inthe line 398 of the motor start circuit to the right hand terminal oftheau'xiliary start switch 492; a line 583 connects the left handterminal of the auxiliary start switch 492 with the right hand terminalof a control switch 494 arranged on the storage device 22; and a line584 connects the left hand terminal of the control switch 494 with thejunction point 586 in the line 384. of the motor start circuit. -As theauxiliary start switch 492 and the control switch 494 are arranged inseries, the operation of the electromotor 46 at inching speed bymeans-of the auxiliary start switch 492 requires the closing ofthecontrol switch 494, and the operation of the electromotor 46 atinchingspeed is termi nated as soon as the controlswitch 494 is opened.

As more fully described in my Patent #2302,- 700, issued November 24,1942, the control element 495 of the control switch 494 is mounted on aclamping board I loosely resting on the carriage 64 .(see Fig.4). whenthe. carriage is in, its inactive position shown inrun lines, thecontrolswitchj494 is open. Duringthedownward movement of: the carriage94 .thecontrol switch 494 is closedbylits control element495, assoon asitheclamping board 1 I, 0. is. deposited on .a. stationary clamping boardI02 and clampsthe warp 34; The

control switch 494 remainsin' closed position dur-. ing the furtherdownward movement ofthe carriage. 64 into its active position. shown indash and dot lines in Fig. 1. During the downward movement of thecarriage 64 .from said active position, the control switch 494 isopened, as soon as the clamping board H0 is movedaway from thestationary clamping board I02 and the warp 34 by, the carriage 64. Thisopening of the control switch 494 takes place prior to the opening of,the auxiliary'start switch 492 as will be described hereinafter.

-;Furthermore,, as more fully described in my Patent #2,3 02,700, issuedNovember 24, 1942, the

control element 493 (Fig.1) of the auxiliary start. switch 492is'rigidly connected with the handle- 49] of the reversing switch 496and is constructed in such a way that it closes the auxiliary startswitch ,492 onlywhenthe handle 49'! of the reversingswitch is turnedintothe position 49lb for upward movement of the carriage 64. When thehandle 49! is in the neutral position shown in full lines in Fig. 1 orin the position 497a for downwardmovement of the carriage 64, thecontrol element 493 of the auxiliary start switch 492 is out of contactwith the latter, so that the auxiliary start switch is open. Thus,during, the downward movement of the carriage. 4 1116 auxiliary 7 startswitch 492 remains open, and as soon as the handle 49! of the reversingswitch is turned into the position 49'lb ,for an upward movement of thecarriage.

64, ,the auxiliary start switch 492 .is closed; It may be mentioned thatthe control element 493 of. the auxiliary startv switch 492 is of such alength, that it closes the auxiliary start switch shortly beforetheclosing of the reversing switch 496 for an upward movementof thecarriage 54, so that the warp yarns are already under a certain tensionwhen the lifting of the carriage 64 is started. The auxiliary startswitch 492 remains in closed position duringthe upward movement of thecarriage 64, until, at the end of "the. upward movement, the handle 491of the reversing switch 496 is automatically returned into the neutralposition as described in my Patent #2,302,700, issued November 24, 1942.This returnof the handle 49'! causes an opening of the auxiliary startswitch 492, after the control switch 494 has been opened previously bythe liftingof the clamping board H0 carrying the control element 495during the'upward movement of the carriage 64. It maybe mentioned, that,during the upward movement of the carriage into its uppermost inactiveposition, the inching speed switch 490 is opened after theopen'ing ofthe control switch 494 and shortly before the opening of' .junctionpoint "422, through the line 420 to thejunction point 596, and thencethrough the line 508 to the terminal 502; the second line, from thejunction point 426 through the line 428 to the junction point 519, andthence through the line 512 to the terminal 594; th third line, from thejunction point 514 through the line 516 to the terminal 590. Theterminals 515, 518 and 520 of the reversing switch 496 are connectedwith the reversible motor 480 through the lines 522, 524 and 526respectively. Thus, when the handle 4!" of the reversing switch 496 isin the neutral position shown in full lines in Fig. 1 and the terminals592 and 518 are connected with each other, the reversible motor 488 andthe carriage 64 connected with said motor are at a standstill; when thehandle 491 is in the position 491a and the terminal 504 is connectedwith the terminal 515 and the terminal 599 is connected with theterminal 520, the reversible motor 460 is operated in one direction ofrotation for causing a downward movement of the carriage, and when thehandle 491 is in the position 4911) and the terminal 564 is connectedwith the terminal 526 and the terminal 599 is connected with theterminal 515, the reversible motor 488 is operated in the otherdirection of rotation for causing an upward movement of the carriage.

As pointed out above, under certain circumstances, a very low speed or aso-called inching speed of the electromotor 46 driving the beam 44 isdesirable. For example, first, at the beginning of a warping operation,until a few layers of the winding have been wound on the beam; second,after the occurrence of a yarn breakage in the creel and the tying ofthe ends of the broken yarns without the use of the storage device;third, after the occurrence of a yarn breakage at a point between thecreel and the beam and the tying. of the broken ends of the yarnssubsequent to the temporary unwinding of a portion of the warp from thebeam by means of the storage device. In the first instance, the warpshould be taken up by the beam in the warper at a very low speed, untilafter the winding of a few layers, the warping operation proper may besafely started at the normal high speed; in the second instance, thewarp should be drawn from the creelat a very low speed, until the slackin the yarn or yarns has been taken up; in the third instance, the warpfolded in the storage device as shown in dash and dot lines in Fig. 1should be taken up by the beam in the warper at a very low speed duringthe return of the carriage 64 carrying the gripping means 49 by thereversible motor 468 from its lower active position into its upperinactive position, until the warp is released by the clamping board 116.

In the first instance, i-. e., in the beginning of a warping operation,at first the carriage 64 of the storage device is lowered from itsuppermost inactive position into an intermediate position, wherein theclamping board I 19 has not yet been deposited on the warp and thecontrol switch 494 controlled by the control element 495 carried by theclamping board is still open, wherein, however, the inching speed switch496 controlled by the carriage 64 is already closed. The auxiliary startswitch 492 mechanically coupled with the handle 491 of the reversingswitch 496 is also open, as the handle 491 is in its neutral position.The closing of the inching speed switch 499 causes an energization ofthe 'electromagnets 556 and 482 resulting in an opening of the speedcontrol switch 468, whereby the inching speed control circuit isestablished. Now, an operation of the electromotor 46 at inching speedmay be obtained by depressing and holding the spring loaded normal startpush button 382 in the depressed position as long as desired, i. e.,until a few layers of the winding have been wound on the beam.Thereupon, the normal start push button 392 is released, so that theelectromotor 46 is stopped, as the motor start circuit is interrupted atthe start push button switch 382 and the motor start holding circuit isinterrupted at the switch 466 still in open position owing to theenergization of the electromagnet 482 caused by the closed inching speedswitch 499. Now, the carriage 64 is returned into its uppermost inactiveposition by turning the handle 49'! into the .position 4911b; thisactuation of the handle 491, however, does not cause an operation of theelectromotor 46 by the auxiliary start switch 492 coupled with thehandle 491, as the control switch 494 arranged in series with theauxiliary start switch 492 is open. Upon return of the carriage 64 intoits uppermost inactive position, the electromotor 46 of the warper maybe started at normal high speed operation, by depressing the start pushbutton 382 for a short period of time, as now the inching speed switch499 is opened, so that the electromagnet 482 is deenergized and theswitch 406 arranged in the motor start holding circuit and the speedcontrol switch 468 arranged in the normal speed control circuit areclosed. a

In the second instance, 1. e., after the occurrence of a yarn breakagein the creel and the tying of the broken ends of the yarn or yarnswithout the use of the storage device, the carriage 64 of the storagedevice is in its uppermost inactive position, so that all switches 490,492 and 494 are in open position. Owing to the slack in the yarn oryarns, the broken ends of which have been tied with each other, one ormore control needles 416 still make contact, so that the needle controlcircuit is still closed and, consequently, the electromagnet 482 isstill excited. Therefore, the switch 496 arranged in the motor startholding circuit and the speed control switch 468 arranged in the normalspeed control circuit are still open. Now, an operation of theelectromotor 46 at inching speed may be obtained by depressing andholding the spring loaded normal start push button 382. As soon as theslack in the previously tied yarn or yarns has been taken up, thecontact at the control needle or needles 416 is broken, whereby theneedle control circuit is interrupted and the electromagnet 482 isdeenergized, so that the switches 466 and 468 are closed. Thus, themotor start holding circuit is closed again and the generator field handrheostat 350 is reconnected with the generator field 466, so that thespeed of the electr0- motor 46 automatically rises to its set value andthe electromotor continue its operation at the high operating speed;now, the start push button 382 may be released, as the motor startholding circuit is closed.

In the third instance, 1. e., after the occurrence of a yarn breakageand the tying of the broken ends of the yarns subsequent to thetemporary unwinding of a portion of the warp from the beam, the carriage64 of the storage device is in its lower active position shown in dashand dot line in Fig. 1, so that the inching speed switch 499 and thecontrol switch 494 are closed. The auxiliary start switch 492 is open atthat time,'-as the handle 491 is in its neutral position whenthe carriag64'is at a standstill. The clos-" ing of the inching speed switch 498causes an energization of the electromagnets 556 and 482 resulting in anopening of the switches 496 and 468. Simultaneously with the turning ofthe handle 49'! of the reversing switch 496 into the position 4912: forcausing an upward movement of the carriage 64, the auxiliary startswitch 492 mechanically coupled with the handle 49! is closed, so thatowing to the closing of the control switch 494 and the inching speedswitch 498 the electromotor 46 is started at inching speed. As soon as,during the upward movement of the carriage, and after the slow taking upof the warp folded in the storage device, the carriage reaches aposition, wherein the clamping board H8 is moved away from the warp 34and the control switch 494 is opened, the electromotor 46 is stopped,although the auxiliary start switch 492 arranged in series with saidcontrol switch 494 is still closed. The upward movement of the carriage64, however, continues, and, in the uppermost inactive position of thecarriage, the auxiliary start switch 482 and the inching speed switch498 are automatically opened. Now, the electromagnet 482 is deenergizedand the switches 406 and 468 are closed, inasmuch as, after the slowtaking up of the warp, no slack prevails in the yarns and the controlneedle 4E6 also controlling the electromagnet 482 are in open position.Now, the electromotor 46 may be started at normal high operating speedby depressing the normal start push button 382 and rel ng same after ashort period of time.

During the inching operation, the tension in the yarns is constantirrespective of the setting of the generator field hand rheostat 358 andirrespective of the amount of yarn already warped. This is accomplished,first, by the fact that the generator field hand rheostat 350 isdisconnected from the generator field 469 during the inching operation,and, second, by the fact that the torque of the electromotor 46 isincreased by the building up of the warp by means of the automatic motorfield rheostat 258 controlled by the pressure roll I32.

As will be apparent from above description, the electromotor 46 must bestarted at full load and at various speeds. In order to take care ofthese varying conditions, the electromagnet 364 of the motor fieldvibrating relay 366 is arranged in the main motor circuit, and theterminals of the spring loaded vibrating switch 638 controlled by theelectromagnet 364 are connected with the junction points 648 and 642respectively in the motor start holding circuit by lines 644 and 646respectively. Thus, the vibrating switch 638 will short circuit theautomatic motor field rheostat 258, when the load current, which passesthrough the electromagnet 364 of the vibrating relay 366, reaches adefinite limit. The spring connected with the vibrating switch 638returns same into open position, as soon as the load current passingthrough the electromagnet 364 falls below said definite limit. Theaction of the vibrating relay 366 continues, until a stable condition ofthe load current below said definite limit has been established.

The operation of the electromotor 46 of the war-per is automaticallystopped, as soon as the stop push button 414 is depressed by hand, or assoon as one or more control needles 436 drop upon a yarn breakage in thecreel or at a point between the creel and the beam, or as soon as theswitch MB of the shut ofi counter 98 is automatically opened at th endof a warping operation after the warping of the predetermined length ofwarp for which the shut oif counter is set. In the first and secondcase, the electromagnet 606 of the shut off counter relay 582 is notaffected, so that a restarting of the electromotor 46 at normal highspeed or at inching speed by the start push button 382 or by theauxiliary start switch 492, as the case may be, may be carried outwithout a previous resetting of certain circuits of the control systemby means of the reset push button 616. In the third case, however, theswitch 4!!! of the shut ofi' counter 98 is automatically opened, wherebythe electromagnet 686 controlling the electromagnet 662 is deenergizedand the switch 482 arranged in the motor start holding circuit isopened, so that the shut off. counter must be reset and the reset pushbutton 6l6 must be actuated before a new con tinuous operation of theelectromotor 46 by an actuation and subsequent release of the springloaded start push button 382 may be obtained. If the shut oil counterwere not reset and/ or the reset pushbutton M4 were not actuated, theelectromotor 46 could be operated at normal high speed or at inchingspeed only for such a time,

as the start push button 382 is held in depressed position; a release ofthe start push button would cause a stoppage of the electromotor 46under these conditions. The pilot lamp 624 connected with the counterstop relay control circuit lights up only in the third case, when theswitch 4l8 of the shut off counter is opened. In all three cases thebrakes of the warper controlled by the electromagnet 434 of the brakecontrol relay 432 are immediately applied upon the arresting of theelectromotor 46. If the choke coil 433 is omitted, the brakes arereleased after a short period of time by the action of the time relay412, if the choke coil 433 is arranged in the control system, the actionof the time relay 2 causes a reduction of the force of application ofthe brakes to a low degree determined by the choke coil after a shortperiod of time, and the brakes are entirely released as soon as theelectromotor 46 is restarted either at inching speed or at normal high.

or more control needles 4l6 make contact, or in,

other words, the electromotor 46 can be operated at inching speed onlyas long as the Warp yarns are not in proper position and cause contactsby the control needles M6. Furthermore, it may be mentioned that theswitch 486 also controlled by the electromagnet 482 of the warp brakerelay 488 and arranged in the motor start holding circuit in series withthe electromagnet 456 of the time relay 4! 2 remains in open position aslong as the condition for inching speed operation prevails. Therefore,the motor start holding circuit is interrupted during the inchingoperation, and an inching speed operation of the electromotor 46 bymeans of the spring loaded startpush button 382 can be obtained only forsuch,

open position during the inching operation owing to the interruption ofthe motor start holding circuit. inching operation the brakes of thewarperare not applied if the choke coil 433 is omitted,'or-

the brakes are only slightly applied depending on the adjustment of thechoke coil if the choke coil is arranged in the control SystemPreferably, the warp brake relay 408, the warp brake sensitiveintermediate relay 558,,the shut.

off counter relay .582, the time. delay relay. M2,

the low voltage transformer 548', the :counter;

ing circuit; brake control circuit, normal speed:

control circuit and inching speed control circuit; the primary windingl4of the low volt age transformer 5 48 is fedwithaltern'ating .current of220 volts "and the secondary winding 546 of said transformerdeliversalternatingcurrent at 18 volts to the reset circuits, the resetholding circuit, the counter vstop relay control circuit, the signalcircuit; theuwarp brake-relay control circuit, and the needlecontrolcircuit.

Fig. 4 illustrates-a different embodiment of an electrical controlsystem according to my'invention adapted for use ina beamingplantincluding a beamer 100 and a creel2400:shown' in Fig. 3. I Thearrangement" of the various circuits of the electrical controlsystemaccording to Fig. 4 and its-principle: of operation aresubstantially the "same as the arrangement of the circuits and theprinciple of operation of the above described system according toFig-:72 so that it is sufficient to' describe hereinafter only thedifferences between; the two systems." For a fulldescription of theconstruction and operation of the beamer l00reference is had to mycopending patent application relating to .a ,fBeamer, Serial #419,833,filed on November 21, 1941. Hereinafter, onlythoseparts of the beameraredescribed, which are necessary for the understanding of theapplica'tionof my electrical control system to the beaming plant. v An electromotor4600 mounted on the frame of the beamer 100 in a suitabl manner drivesthe a main shaft 102 by meansof a, belt 104 trained around a pulley I06.secured to the shaft 108 of the electromotor 4600 andarounda pulley 'H0secured to the main shaft 102. A pinion 'll2 securedto the fnain shaft102 serves to drivethe beam 4400 through the medium of a gear H4 securedto the beam; a

A cradle 1 is for receiving and lifting the beam 4400 into operatingposition is swingably mounted onthe main shaft 102 and earries'a'jgearsegment -'||8 meshing with a pinion 120 secured to a cross shaft722 carrying a worm gear 124. A worm .126 secured to the lower end of aspindle 12!! carrying a hand wheel 130 .at its upper end meshes with thewormgear 12 i.v On each side of the cradle TI 6 a roller I32isirotatably arranged on the free end ofthe cradle for bearingengagement with a brake drum 134 mounted'on the beam 4400. The brakedrums 134 arranged on each side of the beamjare. adapted for 'cooperaeTherefore, after the termination of an tion with brake bands (notshown). In order to insert a beam into the beamer, the cradle is movedinto its lower receiving position with the roller in the position I32 byturning the hand wheel 130. After a beam has been placed into the cradlewith its drums 134 in bearing contact with the rollers 132; the handwheel'is turned in opposite direction for lifting the cradl with thebeam until they reach the operating position shown in full lines in Fig.3. A lug 13B arranged on the cradle contacts the control element 651 ofa safety switch 650 mounted on the frame of the beamer, as soon as thecradle and the beam are in their operating position. Said safety switch650 is normally held in open position by a spring (not shown) and isclosed upon contact of the lug 136 with the control element 65]. ,ASbest shown in'Fig. .4, the, safety switch 650 is arrange'din the line386 of the motor start circuit and motor start holding circuit, so thatthe beamercan be started only when the beam 4400 is in operatingposition whereby the safety switch is closed. As soon as the cradle H6andbeam 4400 are moved away from the operating position, the lug isdisengaged from the control element 65l of the safety switchB50, so thatthe latter is opened by its spring and the motor start circuit isinterrupted wherebya starting of the electromotor .4600 is renderedimpossible;

A pressure roll I320 rotatably mounted on an assembly 138 swingablyarranged on the frame of the beamer at 140 is held in contact with thewinding on the beam 4400 by the action of its own Weight. The assembly138 carries a gear segment 144 meshing with a pinion 146 secured to across shaft l ilicarrying a sprocket 150. The sprocket 150 is. connectedwith a sprocket 152 secured to a cross shaft 154 by means of a chain156. The cross shaft 154 carries the movable finger (not shownyof theautomatic motor field rheostat 2580, which is electrically connectedwith the circuits of the control system in the same way as the automaticmotor field rheostat 258 of the warping plant according to Figs. 1 and2. The assembly I38 is moved in clockwise direction as viewed in Fig. 3,in accordance with the increase. of the diameter of the winding on thebeam 4400 during the beaming operation, so that the automatic motorfield rheostat 2580 is adjusted in dependence on the building up of thewinding on the beam through the medium of the gear segment 144, pinionT45 and chaindrive 150, I52, 155.. I

The generator field hand rheostat 3500 electrically connected with thecontrol system in the same way as the generator field hand rheostat 350of the warping plant according to Figs. 1 and 2 is mounted on the frameof the beamer in any suitable manner.

The A. C. to D. C. motor generator set 2000 and the hand switch 3540 forconnecting the A. C. supply line 30 with the circuits of the controlsystern are also mounted on the beamer.

Furthermore, the beamer carries the control box 6480 containing therelays 408, 558, 582, M2, 404, 432, 3 66 and the transformer 548.

Unlike the warping plant shown in Fig. 1, the beaming plant shown inFig. 3 has no storage device arranged between the beamer and the creel.Therefore, the inching speed switch 000. the' auxiliary start switch 492and the control switch 404 and their connections with the circuits ofthe contro1 system shown in Fig. 2 are omitted in the control systemshown in Fig. 4. In order to obtain Can inching speed operation of theelectromotor 4000, an inching speed switch 4900 is mounted on' thebeamer I00. According to Fig. 4, the inching speed switch 4000 isconnected withthe warp brake relay control circuit in parallel to theswitch 566 of the warp brake sensitive intermediate relay" 558 by lines052. The inching speed switch 4900 is normally held in open position bymeans of a spring (not shown). If the inching speed switch is closed byhand. the electromagnet 432 of the warp brake relay 408 is excitedwhereby'the speed control switchifit is opened for a disconnection ofthe generator field hand rheostat 3500 from the generator field 400 andthe electromotor 4600 may be operated at inchingspeed upon closure ofthe start switch 3820. As best shown in Fig. 4, the start switch 3820and the stop switch 4I40 are electrically connected with the circuits ofthe control system in the same way as the start push button switch 382and the stop push button switch 4I4 of the warping plant shown in Fig.2. Unlike the start push button switch andthe stop pushbutton switch ofthe warping plant, however, the start switch 3820 and the stop. switch4M0 of the beaming plant are not arranged on a Stop-start-stationtogether with the reset push button (H and the pilot lamp 6240.'The'reset pushbutton 6 I 00 andthe pilot lamp 5240 electricallyconnected with the'control system in'the same manner as the reset pushbutton 6 I and the pilot lamp 024 of above described warping plant arearranged on a separate Reset station 050 mounted on the frame 0f.'thebeamer I00. The stop switch 4 I 40, the inching speed switch 4900 andthe start switch 3820 are arranged on a separate"StopTinch-start-station 650. As more fully described in my copendingpatent application Serial #419,833, filed on November 21, 1941, ashipper rod 758 subjected to the action of'a spring 700 and rotatablymounted at 752 serves, to control all three switches M40, 40630, 3020through a suit able mechanism generally indicated by I54 in thefollowing manner: Fig. 3 illustrates the shipper rod I58 and themechanism connected therewith in neutral position. If the spring loadedshipper rod 158 is turned by hand through a certain angle in clockwisedirection as. viewed in Fig. 3, the inching speed switch 4000 and thestart switch 3820 are closed'without an actuation of the stop switch4M0, so-that the electromotor 4600 operates at inching speed as, long asthe shipper rod 158 is'held against the action of its spring I00 in saidposition causing a closure of the inching speed switch and the startswitch. If theshipper rod I58 is turned further in clockwise direction,a spring actuated swingable element 1% forming a part of the mechanismI04 is disengaged from the v spring loaded control element 4010 of theinching speed switch 490.0 and causes an automatic release and openingof the inching speed switch 4900, while the start switch 3820- remainsin closed position, so that the electromotor 4500 runs at normal highspeed operation. N w,-if the shipper rod 153 is released and is returnedinto its neutral position by means of its spring 3'60, the start switch3 820 is opened and the swingable element 180 swings past thespringloaded control element 49I0 without actuating same, i. e., withoutcausing a closing of the inching speed switch; thus, the electromotor4000 continues its operation at normal high' speed operation due to theaction of above describedmotor start holdin circuit. In order to stopthe electromotor 4500 by hand, the shipper rod I58 is turned from itsneutral position in counter-.clockwise direction,

whereby the stop switch M40 is closed without an actuation of theinching speed switch 4900 and the start switch 3820. Upon release of theshipper rod, the latter is returned into neutral position by its spring160. I

As will be understood from the diagram shown in Fig. 4 and from abovedescription of the circuits of the control system, the speed controlswitch 408 is also controlled by the control needles M60 in the creelthrough the medium of the warp brake sensitive intermediate relay 558and its switch 566. Therefore, if the operator turns the shipper rod I58into its end position, wherein the inching speed switch 4900 is open andthe start switch 3820 alon is closed, the electrornotor 4000 can operateat inching speed only as long as one or more control needles M50 makecontact owing to slack in warp yarns 3400 for example. As soon as theslack in the warp yarns is taken up by the beam and the contact at thecontrol needles M60 is broken, the electromotor 0000 rotates at normalhigh speed.

As best shown in Fig. 3, the warp 3400 is trained around: a. measuringroll I68 rotatably mounted on the frame of the beamer at I10. Saidmeasuring roll drives the shut oiT counter 0000 through the medium ofsuitable gears (not shown). The shut off counter 9000 of the beamer iselectrically connectedwith the circuits of the control system in thesamemanner as the shut off counter 90 of above described warper andoperates according to the same principle. Likewise, the reset pushbutton 6 I60 of the beamer operates in the same manher as the reset pushbutton 6I6 of the warper.

While the brakes of the warper shown in Fig. l are actuated by means ofa brake solenoid 3I0, the brakes of the beamer shown in Fig. 3 areactuated by means of a so-called torque motor I12, i. e., a motor withhigh starting torque, which may be loaded'to such a degree that astoppage occurs without an undue heating of the parts of the motor. Thetorque motor I12 is secured to the frame of the beamer in suitablemanner and carries on its shaft 114 a pinion I16 meshing with a gearsegment I18 secured to a shaft I00 rotatably arranged in the beamer. Anarm I02 secured to the shaft I is connected with a link T84 actuatingthe brake band (not shown) of the brake for the beam 4400 through themedium of an arm "I06 pivoted to a stationary part of the beamer at I08.An arm I integral with the body of the gear segment I18 is connectedwith a Bowden wire,I9,2- actuating the brake (not shown) of the pressurer011 I32 0. An arm I94 also integral with the body of the gear segmentI13 is connected with a link I00 actuating the brake (not shown) of themeasuring roll 100. Thus, if the torque motor is switched on, the brakesof the beam 4000, of the pressure roll I320 and of the measuring roll708 are applied simultaneously by means of the gear segment I78 and thearms I82, 790 and I94 connected therewith.

The masses of the pressure roll and measuring roll remain constantduring the beaming operation, while the mass of the beam is increasedowing to the building up of the winding on the beam. .As more fullydescribed in my copending patent application Serial #419,833, filedNovember 21, 1941, the action of the brakes on the pressure. roll andmeasuring roll is effected by braking springs released by the torquemotor, while the action of the brake on the beam is effected by abrakinig band controlled by the output of the torque motor. The brakingsprings exert a get-ares constant rorce" on-" the cons'tarit masses orthe pressure roll andnieas'uring roll, so that the braking time of thefpress'urer'oll and-measuring roll remain cons'tant; In order to obtain'tlie same constant-braking time for the mass'of the beam va'rying'withthe building up of 'the Winding on the beam, I provide an automaticallyad'- justable resistor 658 for'var'ying'th'e "output'of the torque motorin dependence-on the building up of the winding on the beam. The movablefinger (not shown) of the resistor 658 is connected with the cross shaft154 controlled *by 'the pressure roll I320- through the medium of thegear segment'lfl', the pinion I46 andthe chain drive "150, 152; 156'independence on the increase of the diameterof the winding on the beam i7: ,1 a

As best shown in Fig; 4;"the torque motor 112 is connected 'with' theelectrical control system by means of the following torque motor brakecircuit: A line' 660 leading'fromi the'junction point 506 to'theterminal 662', said line including the pole S1 of a triple pole torquemotor switch S and a first coil of the adjustable resistor 058-; a line084 leading from the junctionp'oint 510" to the terminal 656, said lineincluding-the pole S2 of the triple pole torque motor switch S and. asecond coil of the resistor 658;a'line 558 leading from the junctionpointSIT to the terr'ninalttfi, said line, including the poleSaof'thetriple pole torque motor switch 8 and a third coil of theresistor 658. I I The "triple pole torque motor switch Siszcontrolled-by the electromagnet672 of a torque'motor relay 61A.Theelectromagnet 612 is arranged in the following controlling brakecircuit' starting from the upper'term'inal of the'secondary winding 54Bof thelow voltage transformer 5483A line 616 leading from the upperterminalof the secondary winding to the left hand terminal of the brakecontrol switch430 of the brake control relay 032; a line 618connecting-theright hand terminal of the -switch 430 with theelectromagr net 672; a line 1680 connecting theelectromage net .512 withthe right hand terminal of the switch 424 of the time relay M2; andaline 682 connecting the left hand terminal of the switch 624 with thelower terminal ,ofthe, secondary winding 546. Thus, as soon as thebrake'control switch 430 is closed upon an interruption of-the motorstart holding circuit as described above, the electromagnet 612 isexcited causing a closing of the triple pole torque motor switch -Sresulting in a switching on of the torque motor 1'52 and an applicationof the brakes of the beanier. of the time relayAlZ interrupts thecontrolling brake circuit as described above, whereby the eiectromagnet612 is deenergized," so that the triple pole=torque motor switch S isopened and the torque motor 112 is switched ilofiyfor ;a release ofthebrakes. r 1 3 As'shown in Fig. 4, the electrical-1controlsys tern forthe'beainer is also e'quipped'with-an electrical brake becomingeffective in addition to the mechanical brakes, of the beamer actuatedby the torque motor. 'For this "purpose an "adjust able dynamicbrakingulesistor 6'84"is connected with the junction points 686 and 088in the" lines 382 and 372 of the main motor circuit 'by means of adynamic resistor circuit '690'including a dynamic resistor switch 6920ia' dynamic Fresistor relay 694. The'elect'roi'nagn'et"696"bf"said'*'rlay 6-80 is arrange'din parallel totheelectromagnet 434 of the brakecontrol relay flfi bymeans of After ashort period of time, the switch 424- lines 698; 11 Thererdre; the'eIttromagneV G-Qe T is excited and the dynamic resistor switch"692"con-'trolled by said electromagnet is opehas long as themotorstartholding'ci'rcuit "is closed and the electromotor lfiwdrives thebeam. As s'oo'na's the motor start holding circuit is "interrupted inany of above-described manners and the electromagnet 4340f thebrake-control relay 432 and the electromagnet "696 of the dynamicresistor relay694 are deenergizedfthe dynamic resistor switch 692 is'closed and shorts the electromotor 4600 through the dynamic brakingresistor 680,- whereby an additional 'braking' of the rotating rriassofthe beam'connect'ed with the electrometor 4600 is'obtained. i

'As best shown in Fig. 3, the beamer I00 is supported by rollers 198secured to longitudinal shafts 800 journalled in suitable hearings oneach side of the frame. A'reversible motor 4800 isc'onnected' with theshafts 800 by means of a chain drive 802 for moving the beamer sidewisein one direction or the other, so that the beamer may be easily placedin'registry with different creels arranged parallelto each other:According to Fig. 4, the electrical connections of the reversible motor4800 withthe circuits of the control system are the same as that ofthe-reversible motor 480 of the storage device according to Fig. '2. Thereversible motor 4800 of the'beamer is controlled by a reversing switch4960 mounted on the frame of 'the beamer.

have "described preferred embodiments of my invention, but; of course,numerouschange and omissionsmay be made without departing from thsp'iritof myinvention. i @Althoughpre'ferably the individual objects of theinvention are applied to an elect'rical'co'ntrol system-1m textilemachines in the combination described; the individual objects of theinvention maybe applied individually or in partial combihet onftq l ctical e rq 'ystemsf for text l ma rres'f It i emphasized thatthe merits'of e in t o are. n mite o h =r b dj -nd i l 's rat dcom mati n, but e nividu l ob e ts he 1 t n. .per'. a o have iin e 't rc merits.WhatI,c1aimis..- l. In' an electrical controlsystem for the oper: ationot braking meansofa warping orbeaming plant, the combination of a sourceof current, ,an electromotor for driving a-beam, a motor circuit {orconnecting the source of current with said electromotor, at least onecircuit opening switch for causing an interruption of said. motor.circuit, an electrical actuating device for the operation of thebraking means,,a brake circuit in: cluding said electrical actuatingdevice, and an electrical control responsive to an interruption of saidmotor circuit for changing the electrical conditionof said brake circuitso as to cause an actuation ofsaid electrical actuating devicefor anactuation of the braking means.

. 2-. n a iP 1 nt Ql S m for e O .ation of braking m eans of a warpingorbeaming plant, the combination of a source of current, an electromotorfor driving a beams; motor circuit for connecting the source of' currentwith said electromotor; at least. one circuit opening switch for causingan interruption of said motor circuit, electromagnetic means i for theoperation of the braking means, a, brake circuit includin said"electromagnetic r'nean's', "and an electrical control responsive" to aninterruption of "said" motor' circuit for closing said brake circuit' soas 'to "excite said'electromagnetic means for an'actuation of thebraking means.

3. In an electrical control system for theoperation of braking means ofa warping or beaming plant, the combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingswitch for causing an interruption of said motor circuit, an electricalactuating device for the operation of the braking means, a brake circuitincluding said electrical actuating device, an electrical controlresponsive to an interruption of said motor circuit for changing theelectrical condition of said brake circuit so as to cause an actuationof said electrical actuating device for an actuation of the brakingmeans, and a time relay responsive to an interruption of the motorcircuit'for causing at least a substantial reduction in the output ofsaid electrical actuating device after a period of time determined bythe delaying action of the time relay.

4. In an electrical control system for the oper.-, ation of brakingmeans of a warping or beaming plant, the combination of a source ofcurrent, an electromotor for driving a beam, a motor circuit forconnecting the source of current with said electromotor, at least onecircuit openin switch for causing an interruption of said motor circuit,electromagnetic means for the operation of the braking means, a brakecircuit including said electromagnetic means, an electrical controlresponsive to an interruption of said motor circuit for closing saidbrake circuit so as to excite said electromagnetic means, and a timerelay responsive to an interruption of the motor circuit for causing atleast a substantial reduction in the energization of saidelectromagnetic means after a period of time determined by the. delayinaction of the time relay.

In an electrical control system for the opere ationof braking means of awarping or beaming plant, the combination of asource of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingswitch for causing an interruption of. said motor circuit, an electricalactuating device for the operation of the braking means, a brake controlswitch, a time delay switch, a brake circuit, said electrical actuatingdevice said brake control switch and said time delay switch beingarranged in series in said brake circuit, a first electrical controlresponsive to an interruption of said motor circuit and associated withsaid brake control switch for closing said brake circuit by said brakecontrol switch, and a second electrical control including a time relayresponsive to an interruption of said motor circuit and associated withsaid time delay switch for opening said brake circuit by said time delayswitch after a period of time determined by the delaying'action of thetime relay.

6. In an electrical control" system for the operation of braking meansof a warping or beaming plant, the combination of a source of current,an electromotor for driving a beam, a motor circuit for connecting thesource of current with" said electromotor, at least one circuit openingswitch for causing an interruption of said motor cirq cuit, anelectrical actuating device for the operation of the braking means, abrake control switch, a time delay switch, a brake circuit, saidelectrical actuating device said brake control switch and said timedelay switch being arranged in series in aid brake circuit, anadjustable choke coil arranged in parallel with said time delay switch,a first electrical control responsive to an interruption of said motorcircuit and associated with said brake control switch for closing saidbrake circuit by said brake control switch, and a second electricalcontrol including a tim relay responsive to an interruption of saidmotor circuit and associated with aid time delay switch for opening saidbrake circuit by said time delay switch after a period of timedetermined by the delaying action of the time relay.

'7. In an electrical control system for the operation of braking meansof a warpin or beaming plant, the combination of a source of current, anelectromotor for driving a beam, a main motor circuit for connecting thesource of current with said electromotor, a main switch arranged in saidmain motor circuit, a motor start circuit, a start switch, a trip coilmagnet associated with said main switch for closing said main motorcircuit upon an energization of said trip coil magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuit connected in parallel with said startswitch, at least one circuit opening switch arranged in said motor startholding circuit for interrupting said main motor circuit by deenergizingsaid trip coil magnet, an electrical actuating device for the operationof the braking means, a brake control switch, a brake circuit, saidelectrical actuating device and said brake control switch being arrangedin series in said brake circuit, and a brake control relay connected inparallel with said trip coil magnet and associated with said brakecontrol switch for closing said brake circuit by said brake controlswitch upon an interruption of said motor star-t circuit.

8. In an electrical control system for the operation of braking means ofa warping or beaming plant, the combination of a source of current, anelectromotor for driving a beam, a main motor circuit for connecting thesource of current with said electromotor, a main switch arranged in saidmain motor circuit, a motor start circuit, a start switch, a trip coilmagnet associated with said main switch for closing said main motorcircuit upon an energization of said trip coil magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuit connected in parallel with said startswitch, at least one circuit opening switch arranged in said motor startholdin circuit for interrupting said main motor circuit by deenergizingsaid trip coil magnet, an electrical actuating device for the operationof the braking means, a brake control switch, a time delay switch, abrake circuit, said electrical actuating device said brake controlswitch and said time delay switch being arranged in series in said brakecircuit, a brake control relay connected in parallel with said trip coilmagnet and associated with said brake control switch for closing saidbrake circuit by said brake control switch upon an interruption of saidmotor start circuit, and a time relay arranged in said motor startholding circuit in series with said circuit opening switch, said timerelay bein associated with said time delay switch for opening same uponan interruption of said motor start holding circuit after a period oftime determined by the delaying action of the time relay.

9. 'In an electrical control system for the operation of'braking meansof a warping or beaming plant, the combination of a source of current.an

electromotor for driving a beam, 9, main motor circuit for connectingthe source of current with said electromotor, a main switch arranged insaid main motor circuit, a motor start circuit, a start switch, a tripcoi1 magnet associated with said main switch for closing said main motorcircuit upon an energization of said trip coil magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuitconnected in parallelwith said start switch,-at least one circuit opening switch arranged in said motor start holdingci're cuit for interrupting said main motor circuit by deenergizing saidtrip coil magnet, an electrical actuating device for the operation ofthe brak ing means, a brake control switch, a time delay switch, a brakecircuit, said electrical actuating device said brake control switch andsaid time delay switch being arranged in series insaid brake circuit, anadjustable choke coil arranged in parallel with said time'delay switch,a brake control relay connected in parallel with said trip coil magnetand associated with said brake control switch for closing saidbrakecircuit by said brake control switch upon an interruption of said motorstart circuit, and a time relay arranged in saidmotor start holdingcircuit in series with said circuit opening switch, said time relaybeing associated with said time delay switch for open ing same upon aninterruption of said motor start holding circuit after aperiod of timedetermined by the delaying action of the time relay,

10. In anelectrical control system for the operation of braking means ofa warping or beaming plant including a creelwith control needlesresponsive to yarn breakage, the; combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, acircuit opening switcharrangedfor causing an interruption of said motor circuit, a, -firstelectrical control responsive to an actuation of a control-needle uponyarn breakage for opening said circuit open,- ing switch, an electricalactuating devicesfon the operation of the, braking means, a brakecircuit including said electrical actuating device, ,anda secondelectrical controlresponsive to an interruption of said motor circuitforchanging the electrical condition of said brakecircuit so as to cause anactuation of said electrical actuating device for an actuation of thebraking means;

11. In an electrical control system for the-oper: ation of braking meansof awarping or beaming plant including a creel with control needles responsive to yarn breakage; the "combination ofi'a source of current, anelectromotor for driving a beam, a main motor circuit for connecting thesource of current with said electromotor,a main switch arranged in saidmain-=motor circuit,- --a motor start circuit, a start switch,- a tripcoilrmage-i net associated withsaid main switch for'closing' said mainmotor circuit upon anenergization of. said trip coil-magnet, saidstartswitch and said trip coil magnet being I arranged in said motorstart circuit, a motorstart holding'circuit 'con nected in parallel withsaid start switch, a man ual stop switchyand a circuit opening, switcharranged insaid motor start holding circuitgfor interrupting said mainmotor circuit' by .-dee n-fr ergi zing said trip coil magnet,anyelectrical con-z" JllOl responsive .to anactuation' of-acontrolneedle lfuponyarn breakagefor openingsaid circuitpopeining,switch, an; electrical actuating device forzther operation of I thebrakin means, 'a, brake control device and said brake control switchbeing arranged in series in said brake circuit,an'd a brake controlrelay connected in parallel with saidtrip coil magnet and associatedwith said brake 0on5 trol switch for closing said brake circuit by saidbrake control switch upon an interruption of said motor start circuit.

12. In an electrical control system for the operation of braking meansof a:wa'rping or beaming plant including acreel with control needle re-'sponsive to yarn breakage, the combination .of a source of current, anelectromotor for drivin a beam, a motor circuit for connecting thesource of current with saidelectromotor, acircuit opening switcharranged for causing an interruption of said motor circuit, a firstelectrical 'controlresponsive to an actuation of a control needle uponyarn breakage for opening said circuit opening'switch, an electricalactuating devicefor the operation of the braking means, a brake circuitincluding said electrical actuatingdevice, asecond electrical controlresponsive to, an interruption of said motor circuit for changing theelectrical condition of said brakecircuit so as to cause an actuation ofsaid electrical actuating device for an actuation of the braking means,and a time relay responsive to-an interruption of the motorwcircuit forcausing at least a substantial Jreductiontin the output of said'electricalactuating device after a period 'oftime determined by thedelaying action of the time relay. a i

13. In an electrical control system for the'operation of brakingmeans ofa warping or beaming plant including a creel withcontrol needles1'esponsive to yarn breakage, :the combination of a source of current,an electromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, a circuit opening switcharranged for causing an interruption of said motor circuit, a firstelectrical "control responsive to an -actuation of a control needle uponyarn breakage for opening said circuit opening switch, an electricalactuatingdevice for the operation of the braking means, abrake controlswitch, a time delay switch,'a brake circuit, said electrical actuatingdevice said brake control switch and said'tim e delay switch beingarranged in series in said brake circuit, a second electrical controlresponsive to an interruption-of said motor circuit and associated withsaidbrake control ation of brakingme'ans of a warping orb'eaming' plantincluding a creelwith control needles responsive to yarn breakage, thecombination of a/source of current, an electromotor for'dr'iving a beam;amain motor icircuitxfor connecting the source'ofcurrent withs'aidelectromotor, amain' switch arranged in said main' 'rnotorcircuit, amotor start circuit," a startswitch," a trip co-il magnet associatedwith said main switch for nos-1 ing said main motor circuit Jupon. annergiza tion of said trip coil magnetfisaid start "switch" and said tripcoil 'magnet bei'ng arranged in said manual. stop switch and-a circuitopening switch switch; brakeigi tcuitifsaid electrical actuating: 75anged in Isaidmotor."sta'rfinoldingfeircuitfor interrupting said mainmotor circuit by dee'ner- .gizin'gsa id -trip coil magnet, an electricalcontrol responsive: to fan actuation of a control needle upon yarnbreakage for opening said circuit opening switch; an electricalactuating device for the operation of the braking means, a brake controlswitch, a time delay switch, a brakecircuit, said electrical actuatingdevice said brake control switch andsaid time delay switch beingarranged in series insaidxbrake circuit, a brake control relay connectedin parallel with said trip coil magnet and. associatedwith said brakecontrol switch for closingsaid brake circuit by said brake controlswitchupon an interruption of said motor start circuit, and'a timerelayarranged in said motor start holding circuit in series with saidcircuitopening switch, said time relay being-associated with said timedelay switch for opening same upon :an interruption of said motor startholding circuit after a period of time determined by the delayingactionof the time relay.

15. In an electrical control system for the operation of braking meansof a warping or beaming plant including a creel with control needlesresponsive to yarn breakage, the combination of a source of current, anelectromotor for driving a beam,-a motor circuit for connecting thesource of current with said electromotor, a first circuit opening switchand a second opening switch arranged for causing an interruption of saidmotor circuit, a first electrical control responsive to an actuation ofacontrol needle upon yarn breakage for opening, said first circuitopening switch, a second electrical control responsive to the length ofwarp wound on the beam for opening said second circuit opening switchafter the warping of a predetermined length of warp, an electricalactuating device for the operation of the braking means, a brake circuitincluding said electrical actuatin device, and a third electricalcontrol responsive to an interruption of said motor circuit for changingthe electrical condition of said brake circuit was tocause an actuationof said electrical actuating device for an actuation of the brakinmeans,

16. In an electrical control system for the operation of braking meansof a warping or beaming plant including a creel with control needlesresponsive toyarn breakage, the combination of a source of current,anelectromotor for driving a beam, 2, main motor circuit for connectingthe Source of current'with said electromotor, a main switch arranged insaid 'main motor circuit, a motor start circuit, a start switch, a tripcoil magnet associated with said main switch for closing said main motorcircuit uponan energization of said trip coil magnet, said start switchand said trip coi-l magnet bein arranged in said motor start circuit, amotor start holding circuit connected. in parallel with said startswitch, a'manual stop switch a first circuit opening switch and asecond-circuit opening switch arranged in series in said motor startholding circuit for interrupting said main motor circuit by deenergizingsaid trip coil magnet, a first electrical control responsive to anactuation of a control needle uponyarn breakage for opening said firstcircuit opening switch, a second electrical control responsive to thelength of warp wound on the beam for opening said second circuit openingswitch after the warping of a predetermined length of warp, an

electrical. actuating device for the operation ofthe braking means, abrake control switch, a brake circuit, said electrical actuating deviceand said said brake circuit,and a brake control relay connected inparallel with said trip coil magnet and associated with said brakecontrol switch for closing said brake circuit by said brake controlswitch upon an interruption-of said motor start circuit. 17. In anelectrical control system for the operation of braking means of awarping or beaming plant including a creel with control needlesresponsive to yarn breakage, the combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, a first circuit opening switchand a second openin switch arranged for causing an interruption of saidmotor circuit, a first electrical control responsive to an actuation ofa control needle upon yarn breakage for opening said first circuitopening switch, a second electrical control responsive to the length ofwarp wound on the beam for opening said second circuit opening switchafter the warping of a predetermined length of warp, an electricalactuating device for the operation of the braking means, a brake circuitincluding said electrical actuating device, a third electrical controlresponsive to an interruption of said motor circuit for changing theelectrical condition of said brake circuit so as to cause an actuationof said elecbrakecontrol switch being arranged in series in tricalactuating device for an actuation of the braking means, and a, timerelay responsive to an interruption of the motor circuit for causing atleast a substantial reduction in the output of said electrical actuatingdevice after a period of time determined by the delaying action of thetime relay.

18. In an electrical control system for the operation of breaking meansof a warping or beaming plant including a creel with control needlesresponsive to yarn breakage, the combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, a first circuit opening switchand a second openin switch arranged for causing an interruption of saidmotor circuit, a first electrical control responsive to an actuation ofa control needle upon yarn breaka e for opening said first circuitopening switch, a second electrical control responsive to the length ofwarp wound on the beam for opening said second circuit opening switchafter the warping of a predetermined length of warp, an electricalactuating device for the operation of the braking means, a brake controlswitch, a time delay switch, a brake circuit, said electrical actuatingdevice said brake control switch and said time delay switch beingarranged in series in said brake circuit, a third electrical controlresponsive to an interruption of said motor circuit and associated withsaid brake control switch for closing said brake circuit by said brakecontrol switch, and a fourth electrical control including a time relayresponsive to an interruption of said motor circuit and associated withsaid time delay switch for opening said brake circuit by said time delayswitch after a period of time determined by the delaying action of thetime relay.

19. In an electrical control system for the operation of braking meansof a warping or beaming plant including a creel with control needlesresponsive to yarn breakage, the combination of a source of current, anelectromotor for driving a beam, a main motor circuit for connecting thesource of current with said electromotor, a main switch arranged in saidmain motor circuit, a motor start circuit, a'start switch, a trip coilmagnet associated with said main switch for closing said main motorcircuit upon an energization of said trip coil magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuit connected in parallel with said startswitch, a manual stop switch a first circuit opening switch and a secondcircuit opening switch arranged in series in said motor. start holdingcircuit for interrupting said main motor circuit by deenergizing saidtrip coil magnet, a first electrical control responsive to an actuationof a control needle upon yarn breakage for opening said first circuitopening switch, a second electrical control responsive to the length ofwarp wound on the beam for opening. said second circuit opening switchafter the warping of apredetermined length of warp, an electricalactuating device for the operation of the braking means, a brake controlswitch, a time delay switch, a brake circuit, said magnet and associatedwith .said, brake control switch for. closing said brakecircuit by saidbrake control switch upon an interruption of said motor start circuit,and'a time relay arranged in said motorstart holding circuit in serieswith said circuit openin switches, saidtime relay being associatedwith'said time delayswitch for opening same upon an interruptionof saidmotor start holding circuit after a period Of time determined by thedelaying action of the time relay.

20. In an electrical control system forthe operation of braking means ofa warping or beaming plantythe combination of a. source of current, anelectromotor for driving a beam, a motor circuit forconnectingthe sourceof current with said-electromotor,- atleast one circuit opening switchfor causing an interruption of said motor circuit, a torque'motor forthe operation of the braking means, a torque motor brake circuitincluding said torquemotor, and an electrical control responsive to aninterruption of said motor circuit for closing said torque motor brakecircuit.

'21. In an electrical control system for the operation of braking meansof a warping or beaming plant, the combination ofa source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingswitch for causing an interruptionof said motor circuit, a torque motorfor. the operation .of the braking means, an automatically adjustableresistor, a torque motor brake circuit including said torque motor andsaid automatically adjustable resistor, said adjustable resistor beingresponsive to the building up of the winding on the beam for varying theoutput of the, torque motor in dependence on said building up of thewinding, and an electrical control responsive to an interruption of saidmotor circuit for closing said torque motor brake circuit."

22. In an electrical, control system for the operation of braking means.of a warping or beaming plant, the combination of a source of current,an electromotor for driving a beam,,a motor circuit for connecting thesource of current with said electromotor, at least one circuit' openingswitch for causing an interruption of said motor circuit, a torque motorfor the operation of thebraking means, a torque motor brake circuitincluding said torquc motor, arfirst electrical control re,-

sponsive toganzinterrupt on of sa dzmotor cir it,

for closing'said torque motor brake circuit, and a second electricalcontrol including a; time relay responsive to an interruption of themotor circuit for interrupting said torque motor brake cir- Jcuit aftera period of time determined by the delaying action of the time relay.23. In an electrical control system for the o eration' of braking meansof a warping or beaming plant, the combination of a source of current,an electromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingswitch for causing an interruption of aid motor circuit, atorquemotorfor the operation of the braking means, a torque motor switch, a torquemotor brake circuit includin said torque motor and saidtorquemotorswitch, a torque motor relay associated with said torque motor switch, abrake control switch, a brake circuit, said torque motor relay and saidbrake control switch bein arranged inseries in said brake circuit, and abrake control relay associated with said brake control switch, saidbrake control relay being responsive to, an interruption of said motorcircuit for closingsaidbrake circuit by said brake control switch .uponsuch an interruption so as to close said torquemotor brake circuit bysaidtorque motor switch controlled by said torque motor relay.

24. An electrical control system as claimed in claim 23 comprising anautomatically adjustable resistor arranged in said torque motorbrakecircuit in series with said torque motor switch; saidautomaticallyadjustable resistor being responsive to the building up ofthe winding 0n the beam for varyingthe output of the torque'motor independence on said'buildingl up-of the winding. 25. An electricalcontrol system as claimed in claim 23 comprising a time relay responsiveto an'interruption of the motor, circuit for interrupting said torquemotor brake circuit after a period of timedetermined by the delayingaction of the time relay. 26. An electrical control system as claimed inclaim 23 comprising an automatically adjustable resistor arranged insaid torque motor brake circuit in series with said torque=motor switch,said automatically adjustableresistor being responsive to the buildingup of the winding on the beam for varying the output, of the torquemotor in dependence on said building. up of the winding, and a timerelay responsive to an interruption of the motor circuit forinterrupting said torque motor brake circuit after a period of timedetermined by the delaying action of the time relay. 7 2'7. In anelectrical control system for the operation of braking means of awarping or beaming plant, the combination. of a source of current, anelectromotor for driving a beam, a main motor circuitfor connecting thesource of current with said electromotor, a main switch arranged in saidmain motor circuit, a, motor start circuit, a start switch, atrip coilmagnet associated with said main switch for. closing said main motorcircuit upon an energization of said trip coil magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuit connected in parallel with said startswitch, at least one circuit opening switch arranged in said motor startholding circuit for interrupting said main motor circuit by deenergizingsaid trip coil magnet, a torque motor for the operation of the brakingmeans, a torque motor switch, a torque motor brake circuit includingsaidtorque motor and said torque motor switch, actorquemotorarelaylassociated with said torque motor switch, a brake controlswitch, a brake circuit,'said torquemotor relay-and said brake controlswitch being arranged in series in said brake circuit, and a brakecontrol relay connected in parallel with said trip coil magnet andassociated with said brake control switch for clos ing said brakecircuit by said brake control switch upon an interruption of said motorstart circuit so asto close said torque motor brake circuit by saidtorque motor switch controlledby said torque motor relay. 7 i

' 28.'An electrical control system as claimed in claim comprising anautomatically adjustable resistor arranged in said torque motor brakecircuit in series with said torque motor switch, said automaticallyadjustable resistor being responsive to the building up of the windingon the beam for varying the output of the torquem'otor in dependence onsaid biulding up-of the'winding.

29; In an electrical control system for'th'e operation of braking meansof a warping orbeaming plant, the combination of a source of current,at;

interrupting said main. motor circuit by deener gizing said'tripcoilmagnet, a torque motor for the operation of the braking means, atorque motor switch, a torque'm'otor brake circuit includ--- ing saidtorque motor and said torque motor switch, a torque motor relayassociated with said torque motor switch, a brake control switch, a timedelay switch, a brake circuit, said torque motor relay said brakecontrol switch and said time delay switch being arranged in series insaid brake circuit, a brake control relay connected in parallel withsaid trip coil magnet and associated with said brake control switch forclosing said brake circuit by said brake control switch upon aninterruption of said motor start circuit so as to close said torquemotor brake circuit by said torque motor switch controlled by saidtorque motor relay, and a time relay arranged in said motor startholding circuit in series with said circuit opening switch, said-timerelay being associated with said time delay'switch for opening same uponan interruption of said motor start holding circuit after a period oftime determined by the delaying action of the time relay so as tointerrupt said torque motor brake circuit by said torque motor switchcontrolled by said torque motor relay.- 7 I I 30. An electrical controlsystem as claimed in claim 29 comprising an automatically adjustableresistor arranged in said torque motor brake circuit in series with saidtorque motor switch, said automatically adjustable resistor beingresponsive to the building up of the winding on the beam for varying theoutput of the torque motor in dependence on said building up of thewinding.

3L In an electrical control system for the operation of braking means ofa warning or beaming plant, the combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingasev, ice

' switch for causing' an interruption of said motor circuit, a dynamicbraking resistor, a dynamic resistor switch, a dynamic resistor circuit.including said dynamic braking resistor and said dynamic resistorswitch, said dynamic resistor circuit connecting said dynamicbraking'resistor in parallel with said electromotor, and an electricalcontrol responsive to. an interruption of I said motor circuit forclosing said dynamic resister circuit by said dynamic resistor switch.

.32, In an electrical control system for the operation of braking meansof a Warping or beaming plant, the combination of a source of current,an electromotor for driving a beam, a motor circuit for connecting thesource of current with Said electromotor, at leastone circuit openingswitch for causing an interruption of said motor circuit, a torque motorfor the operation of the braking means, a torque motor brake circuitin.- cluding said torque motor, a dynamic braking resistor, a dynamicresistor switch, a dynamic resistor circuit including said dynamicbraking resistor and said dynamic resistor switch, said dynamic resistorcircuit connecting said dynamic braking resistor in parallel with saidelectromotor, a first electrical control responsive to an interruptionof said motor circuit. for closing said torque motor brake circuit, anda second 'elec: trical control responsive to an interruption of saidmotor circuit for closing saiddynamic r'esistor circuit by said dynamicresistor switch;

33.-In an electrical control system for the operation of brakingmeans ofa warping or beaming plant, the combination of a source of current, anelectromotor for driving a beam, a motor circuit for connecting thesource of current with said electromotor, at least one circuit openingswitch for causing an interruption of said motor circuit, a torque motorfor the operation of the braking means, a torque motor brakecircuit-including said torque motor, a dynamic braking resistor, adynamic resistor switch, a dynamic resis'tor circuit including saiddynamic braking resister and said dynamic resistor switch, said dynamicresistor circuit connecting said dynamic braking resistor in parallelwith said electromotor, a first electrical control responsive to aninterruption of said motor circuit for closing said torque motor brakecircuit, a second electrical control responsive to an interruption ofsaid motor circuit for closing saiddynamic resistor circuit by saiddynamic resistor switch, and a third electrical control including a timerelay responsive to an interruption of the motor circuit forinterrupting said torque motor brake circuit after a period of timedetermined by the delaying action of the time relay.

34.- In an electrical control system for the operation of braking meansof a warping or beaming plant,- the combination of a source of current,an electromotor for driving a beam, a main motor circuit for connectingthe source of current with said electromotor, a main switch arranged insaid main motor circuit, a motor start circuit, a start switclra tripcoil magnet as'sociatedwith said main switch for closing said main motorcircuit upon an energization of said trip con magnet, said start switchand said trip coil magnet being arranged in said motor start circuit, amotor start holding circuit connected in paral lel with said startswitch, atlcast one circuit opening switch arranged in said motor startholding circuit for interrupting-said main motor oil" cuit by deeneigizing said trip coil magnet, a torque motor for the" operationof thebraking

